Thor's Cave (also known as Thor's House Cavern and Thyrsis's Cave) is a natural cavern located at SK09865496 in the Manifold Valley of the White Peak in Staffordshire, England. It is classified as a Karst cave. Located in a steep limestone crag, the cave entrance, a symmetrical arch 7.5 metres wide and 10 metres high, is prominently visible from the valley bottom, around 80 metres (260 feet) below.